Motherboard DIY Troubleshooting Guide
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...About this guide viii How this guide is organized viii Conventions used in this guide ix Where to find more information ix ASUS contact information x Chapter 1: Product introduction 1-1 1.1 Welcome 1-1 1.2 Package contents 1-1 1.3 Overview 1-2 1.3.1 Identifying the ... Overview 2-4 2.4.2 Installing the CPU 2-5 2.4.3 Installing the heatsink and fan 2-7 2.4.4 Connecting the CPU fan cable 2-9 2.5 System memory 2-10 2.5.1 Overview 2-10 2.5.2 Memory configurations 2-10 2.5.3 Installing a DIMM 2-11 2.5.4 Removing a DIMM 2-12 2.6 Expansion slots 2-13 2.6.1 Installing an expansion card...
...About this guide viii How this guide is organized viii Conventions used in this guide ix Where to find more information ix ASUS contact information x Chapter 1: Product introduction 1-1 1.1 Welcome 1-1 1.2 Package contents 1-1 1.3 Overview 1-2 1.3.1 Identifying the ... Overview 2-4 2.4.2 Installing the CPU 2-5 2.4.3 Installing the heatsink and fan 2-7 2.4.4 Connecting the CPU fan cable 2-9 2.5 System memory 2-10 2.5.1 Overview 2-10 2.5.2 Memory configurations 2-10 2.5.3 Installing a DIMM 2-11 2.5.4 Removing a DIMM 2-12 2.6 Expansion slots 2-13 2.6.1 Installing an expansion card...
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... 2GB of system memory with the Intel® 845 (Brookdale) chipset to set a new benchmark for the following items. ASUS P4B-LX motherboard (micro-ATX form factor: 9.6 x 9.6 inches) ASUS P4B-LX support CD ASUS 2-port USB module ASUS 2-port 1394 module and two 8-to get ahead in the long line of power computing! ASUS P4B-LX motherboard user guide 1-1 The ASUS P4B-LX motherboard delivers...
... 2GB of system memory with the Intel® 845 (Brookdale) chipset to set a new benchmark for the following items. ASUS P4B-LX motherboard (micro-ATX form factor: 9.6 x 9.6 inches) ASUS P4B-LX support CD ASUS 2-port USB module ASUS 2-port 1394 module and two 8-to get ahead in the long line of power computing! ASUS P4B-LX motherboard user guide 1-1 The ASUS P4B-LX motherboard delivers...
Motherboard DIY Troubleshooting Guide
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...Ultra DMA/100/66, PIO Modes 3 & 4 IDE devices. This connector accommodates the provided ribbon cable for the floppy disk drive. ASUS P4B-LX motherboard user guide 1-3 This controller called mPGA478 B. The chipset incorporates Fan Speed Control Monitor (FSCM), event wake-up when power is ...174; Pentium® 4 478/Northwood Processor with 400MHz system bus. 2 North bridge controller. The MCH provides the processor interface, system memory interface, AGP interface, and Hub Interface. 3 SDRAM DIMM sockets. This 20-pin connector connects to prevent incorrect insertion of the connector ...
...Ultra DMA/100/66, PIO Modes 3 & 4 IDE devices. This connector accommodates the provided ribbon cable for the floppy disk drive. ASUS P4B-LX motherboard user guide 1-3 This controller called mPGA478 B. The chipset incorporates Fan Speed Control Monitor (FSCM), event wake-up when power is ...174; Pentium® 4 478/Northwood Processor with 400MHz system bus. 2 North bridge controller. The MCH provides the processor interface, system memory interface, AGP interface, and Hub Interface. 3 SDRAM DIMM sockets. This 20-pin connector connects to prevent incorrect insertion of the connector ...
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... PRIMARY IDE FLOPPY CHASIS_FAN 1394_CON COM1 PORT Line Out Line In 1394HEAD3 1394HEAD2 Mic In ATX12V Intel 845 Memory Controller Hub (MCH) Accelerated Graphics Port (AGP) Realtek RTL8100 AUX_CON Audio Codec CD_IN PCI1 P4B-LX PCI2 PCI3 CR2032 3V Lithium Cell CMOS Power LED1 01 23 1 1 1 Intel I/O Controller Hub (ICH2) CLR_CMOS 2Mbit Firmware...
... PRIMARY IDE FLOPPY CHASIS_FAN 1394_CON COM1 PORT Line Out Line In 1394HEAD3 1394HEAD2 Mic In ATX12V Intel 845 Memory Controller Hub (MCH) Accelerated Graphics Port (AGP) Realtek RTL8100 AUX_CON Audio Codec CD_IN PCI1 P4B-LX PCI2 PCI3 CR2032 3V Lithium Cell CMOS Power LED1 01 23 1 1 1 Intel I/O Controller Hub (ICH2) CLR_CMOS 2Mbit Firmware...
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...into a socket to 2GB system memory using unbuffered ECC or non-ECC PC100/133 DIMMs. 88 Pins P4B-LX P4B-LX 168-Pin DIMM Sockets 60 Pins 20 Pins Figure 2-13 DIMM Sockets Location and SDR DIMMs DIMMs are keyed with two Single Data Rate (SDR) Dual Inline Memory Module (DIMM) sockets. DIMM ...Location 168-pin DIMM (SDR) Total Memory Socket 1 (Rows 0&1) 64MB, 128MB...
...into a socket to 2GB system memory using unbuffered ECC or non-ECC PC100/133 DIMMs. 88 Pins P4B-LX P4B-LX 168-Pin DIMM Sockets 60 Pins 20 Pins Figure 2-13 DIMM Sockets Location and SDR DIMMs DIMMs are keyed with two Single Data Rate (SDR) Dual Inline Memory Module (DIMM) sockets. DIMM ...Location 168-pin DIMM (SDR) Total Memory Socket 1 (Rows 0&1) 64MB, 128MB...
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... down the key during the boot process and enter BIOS setup to pins 2-3. 5. You can clear the CMOS memory of date, time, and system setup parameters by the onboard button cell battery. P4B-LX P4B-LX Clear RTC RAM Figure 2-20 Clear RTC RAM CLR_CMOS 12 23 Clear CMOS Normal 2-16 Chapter 2: Hardware information Turn...
... down the key during the boot process and enter BIOS setup to pins 2-3. 5. You can clear the CMOS memory of date, time, and system setup parameters by the onboard button cell battery. P4B-LX P4B-LX Clear RTC RAM Figure 2-20 Clear RTC RAM CLR_CMOS 12 23 Clear CMOS Normal 2-16 Chapter 2: Hardware information Turn...
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... supplies, the system LED lights up . The system then runs the power-on the devices in the following order: a. Turn on tests. At power on . ASUS P4B-LX motherboard user guide 3-1 If your retailer for the first time 1. Be sure that is working Meaning No error during POST No DRAM installed or detected...
... supplies, the system LED lights up . The system then runs the power-on the devices in the following order: a. Turn on tests. At power on . ASUS P4B-LX motherboard user guide 3-1 If your retailer for the first time 1. Be sure that is working Meaning No error during POST No DRAM installed or detected...
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... does not work with a Flash Memory Writer utility (AFLASH.EXE) to a bootable floppy disk in DOS mode. BIOS setup must specify "Floppy" as the first item in DOS mode. ASUS P4B-LX motherboard user guide 4-1 AFLASH.EXE is a Flash Memory Writer utility that updates the BIOS ...by the Flash Memory Writer utility. AFLASH works only in the boot sequence. 4. Type COPY D:\AFLASH\AFLASH.EXE...
... does not work with a Flash Memory Writer utility (AFLASH.EXE) to a bootable floppy disk in DOS mode. BIOS setup must specify "Floppy" as the first item in DOS mode. ASUS P4B-LX motherboard user guide 4-1 AFLASH.EXE is a Flash Memory Writer utility that updates the BIOS ...by the Flash Memory Writer utility. AFLASH works only in the boot sequence. 4. Type COPY D:\AFLASH\AFLASH.EXE...
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7. If the Flash Memory Writer utility is done, the message "Flashed Successfully" appears. 8. The utility starts to continue. When the programming is not able to the boot disk. Follow ... in case of update failures. If you encounter problems while updating the new BIOS, DO NOT turn off the system because this happens, call the ASUS service center for support. 4-4 Chapter 4: BIOS Setup If this may cause boot problems. Just repeat the process, and if the problem persists, load the original...
7. If the Flash Memory Writer utility is done, the message "Flashed Successfully" appears. 8. The utility starts to continue. When the programming is not able to the boot disk. Follow ... in case of update failures. If you encounter problems while updating the new BIOS, DO NOT turn off the system because this happens, call the ASUS service center for support. 4-4 Chapter 4: BIOS Setup If this may cause boot problems. Just repeat the process, and if the problem persists, load the original...
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... . If you to specify passwords in the Main menu. Halt On [All Errors] This field specifies the types of conventional memory detected by the system during system startup. The password is required to enter the BIOS Setup program and to gain full access to... password again and press . Configuration options: [All Errors] [No Error] [All but Keyboard] [All but Disk] [All but Disk/Keyboard] Installed Memory [XXX MB] This field automatically displays the amount of errors that will cause the system to [Disabled]. Supervisor Password [Disabled] / User Password [Disabled...
... . If you to specify passwords in the Main menu. Halt On [All Errors] This field specifies the types of conventional memory detected by the system during system startup. The password is required to enter the BIOS Setup program and to gain full access to... password again and press . Configuration options: [All Errors] [No Error] [All but Keyboard] [All but Disk] [All but Disk/Keyboard] Installed Memory [XXX MB] This field automatically displays the amount of errors that will cause the system to [Disabled]. Supervisor Password [Disabled] / User Password [Disabled...
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...) multiplied by the bus multiple equals the CPU speed. CPU/Memory Frequency Ratio [Auto] This field determines whether the memory clock frequency is set to [Manual]) This field shows the frequency the clock generator sends to hang or crash. Configuration options: [Auto] [1:1] [3:4] ASUS P4B-LX motherboard user guide 4-15 4.4 Advanced Menu CPU Speed [Manual] This...
...) multiplied by the bus multiple equals the CPU speed. CPU/Memory Frequency Ratio [Auto] This field determines whether the memory clock frequency is set to [Manual]) This field shows the frequency the clock generator sends to hang or crash. Configuration options: [Auto] [1:1] [3:4] ASUS P4B-LX motherboard user guide 4-15 4.4 Advanced Menu CPU Speed [Manual] This...
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... the system to detect a USB device at startup. If not detected, the USB controller legacy mode is enabled. Configuration options: [Disabled] [Enabled] [Auto] OS/2 Onboard Memory > 64M [Disabled] When using a USB device. When set to [Enabled], the BIOS loads the update on or off the CPU Level 1 and Level 2 built-in...
... the system to detect a USB device at startup. If not detected, the USB controller legacy mode is enabled. Configuration options: [Disabled] [Enabled] [Auto] OS/2 Onboard Memory > 64M [Disabled] When using a USB device. When set to [Enabled], the BIOS loads the update on or off the CPU Level 1 and Level 2 built-in...
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The EEPROM on the memory modules that you are using. The SDRAM RAS to CAS Delay parameter appears only when you set the SDRAM Configuration to [User Defined]. ASUS P4B-LX motherboard user guide 4-17 Configuration options: [User Defined] [By SPD] SDRAM CAS Latency [3T] This item controls the latency ...Defined]. 4.4.1 Chip Configuration SDRAM Configuration [By SPD] This parameter allows you to set the optimal timings for items 2-5, depending on the memory module stores critical information about the module, such as memory type, size, speed, voltage interface, and module banks.
The EEPROM on the memory modules that you are using. The SDRAM RAS to CAS Delay parameter appears only when you set the SDRAM Configuration to [User Defined]. ASUS P4B-LX motherboard user guide 4-17 Configuration options: [User Defined] [By SPD] SDRAM CAS Latency [3T] This item controls the latency ...Defined]. 4.4.1 Chip Configuration SDRAM Configuration [By SPD] This parameter allows you to set the optimal timings for items 2-5, depending on the memory module stores critical information about the module, such as memory type, size, speed, voltage interface, and module banks.
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... [Enabled] 4-18 Chapter 4: BIOS Setup The SDRAM Active Precharge Delay parameter appears only when you set to select the size of mapped memory for ISA expansion cards. When set the SDRAM Configuration to a particular setting makes that transfers video data at 1066MB/s. Setting the address space...[4MB] [8MB] [16MB] [32MB] [64MB] [128MB] [256MB] AGP Capability [4X Mode] This motherboard supports the AGP 4X interface that memory space unavailable to [User Defined]. You must set the SDRAM Configuration to other system components. Configuration options: [1X Mode] [4X Mode] Video...
... [Enabled] 4-18 Chapter 4: BIOS Setup The SDRAM Active Precharge Delay parameter appears only when you set to select the size of mapped memory for ISA expansion cards. When set the SDRAM Configuration to a particular setting makes that transfers video data at 1066MB/s. Setting the address space...[4MB] [8MB] [16MB] [32MB] [64MB] [128MB] [256MB] AGP Capability [4X Mode] This motherboard supports the AGP 4X interface that memory space unavailable to [User Defined]. You must set the SDRAM Configuration to other system components. Configuration options: [1X Mode] [4X Mode] Video...
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... Transfer Rate 133MByte/sec 266MByte/sec 512MByte/sec 1024MByte/sec Backup. This specification uses software emulation to you when operating, upgrading, or reconfiguring your computer. ASUS P4B-LX motherboard user guide G-1 This glossary also includes some terms that are also able to perform texture mapping directly from the original. AC '97 is for...
... Transfer Rate 133MByte/sec 266MByte/sec 512MByte/sec 1024MByte/sec Backup. This specification uses software emulation to you when operating, upgrading, or reconfiguring your computer. ASUS P4B-LX motherboard user guide G-1 This glossary also includes some terms that are also able to perform texture mapping directly from the original. AC '97 is for...
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...BIOS instructions are configurable through the BIOS Setup program. PIO (Programmable I/O) IDE requires that the CPU be involved in the cache memory. One byte is also called "Processor," actually functions as printers, mice, modems, and infrared modules. A connector with the ...accompanying circuitry that translates video or audio between computer components, such as memory, disks, and the display adapter. "Reboot" means to restart your computer. Byte (Binary Term). CPU (Central Processing Unit). The ...
...BIOS instructions are configurable through the BIOS Setup program. PIO (Programmable I/O) IDE requires that the CPU be involved in the cache memory. One byte is also called "Processor," actually functions as printers, mice, modems, and infrared modules. A connector with the ...accompanying circuitry that translates video or audio between computer components, such as memory, disks, and the display adapter. "Reboot" means to restart your computer. Byte (Binary Term). CPU (Central Processing Unit). The ...
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... contents can be electrically erased. ASUS P4B-LX motherboard user guide G-3 UltraDMA/100/6633 IDE devices can update the BIOS by the devices. The 1394 standard also provides new services such as scanners and cameras. DRAM (Dynamic Random Access Memory). An expansion card add functions... It acts as keyboards, screens, serial and parallel ports, printers, modems, etc.) connected to the operating system. A non-volatile memory device that retains its own set of the data stored in the motherboard. IDE (Integrated Drive Electronics). This is removed. Device Driver....
... contents can be electrically erased. ASUS P4B-LX motherboard user guide G-3 UltraDMA/100/6633 IDE devices can update the BIOS by the devices. The 1394 standard also provides new services such as scanners and cameras. DRAM (Dynamic Random Access Memory). An expansion card add functions... It acts as keyboards, screens, serial and parallel ports, printers, modems, etc.) connected to the operating system. A non-volatile memory device that retains its own set of the data stored in the motherboard. IDE (Integrated Drive Electronics). This is removed. Device Driver....
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... a walk-up, point-to the output devices like a printer or the monitor screen. OS (Operating System). The OS tasks include memory allocation, input and output distribution, interrupt processing, job scheduling, and various other means. Internet. The data transfers from the input devices ...G-4 Appendix C: Glossary A network technology designed to connect computers that provides customer access to a phone line. The software that memory does not become a bottleneck to -point infrared at speeds between 9.6Kbps and 4Mbps. New platform requirements ensure that controls the...
... a walk-up, point-to the output devices like a printer or the monitor screen. OS (Operating System). The OS tasks include memory allocation, input and output distribution, interrupt processing, job scheduling, and various other means. Internet. The data transfers from the input devices ...G-4 Appendix C: Glossary A network technology designed to connect computers that provides customer access to a phone line. The software that memory does not become a bottleneck to -point infrared at speeds between 9.6Kbps and 4Mbps. New platform requirements ensure that controls the...
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...-threaded I /O devices. SDRAM (Synchronous DRAM). SDRAM takes memory access away from the CPU control; The maximum data rate is a specification that can be accessed and read but not modified. See also DRAM and SDRAM. ASUS P4B-LX motherboard user guide G-5 When you turn ON the computer, it...connecting many peripheral devices. An integrated circuit chip containing program and data that defines a 32-bit data bus interface. RAM (Random Access Memory). SIR (Serial IrDA). POST (Power On Self Test). The computer's primary storage area used by the X3T9.2 committee of the Bus ...
...-threaded I /O devices. SDRAM (Synchronous DRAM). SDRAM takes memory access away from the CPU control; The maximum data rate is a specification that can be accessed and read but not modified. See also DRAM and SDRAM. ASUS P4B-LX motherboard user guide G-5 When you turn ON the computer, it...connecting many peripheral devices. An integrated circuit chip containing program and data that defines a 32-bit data bus interface. RAM (Random Access Memory). SIR (Serial IrDA). POST (Power On Self Test). The computer's primary storage area used by the X3T9.2 committee of the Bus ...
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...17 RAS Precharge Delay 4-18 RAS to CAS Delay 4-17 Serial Ports 1-5, 4-19 SMART Monitoring 4-12 Starting up 3-1 Support CD 5-1 ASUS Update 5-3 DOS Utilities 5-6 Drivers menu 5-5 Main menu 5-2 Motherboard information 5-7 Readme file 5-8 Software menu 5-3 Technical Support Form 5-8 ...Welcome screen 5-1 Suspend Mode 4-25 System Controllers North Bridge 1-3 South Bridge 1-3 System Date 4-8 System memory configurations 2-10 System Time 4-8 U UART2 4-21 Ultra DMA Mode 4-12 USB Legacy Support 4-17 USB ports 1-5 USWC 4-18 V Video Memory 4-19 Z ZIF socket 2-4 ASUS P4B-LX motherboard user guide I-3
...17 RAS Precharge Delay 4-18 RAS to CAS Delay 4-17 Serial Ports 1-5, 4-19 SMART Monitoring 4-12 Starting up 3-1 Support CD 5-1 ASUS Update 5-3 DOS Utilities 5-6 Drivers menu 5-5 Main menu 5-2 Motherboard information 5-7 Readme file 5-8 Software menu 5-3 Technical Support Form 5-8 ...Welcome screen 5-1 Suspend Mode 4-25 System Controllers North Bridge 1-3 South Bridge 1-3 System Date 4-8 System memory configurations 2-10 System Time 4-8 U UART2 4-21 Ultra DMA Mode 4-12 USB Legacy Support 4-17 USB ports 1-5 USWC 4-18 V Video Memory 4-19 Z ZIF socket 2-4 ASUS P4B-LX motherboard user guide I-3